1.
The acronym PC stands for:
Correct Answer
B. Personal Computer
Explanation
The acronym PC stands for Personal Computer, which refers to a general-purpose computer that is designed for individual use. This term is commonly used to describe desktop and laptop computers that are used by individuals for various tasks such as word processing, internet browsing, gaming, and more. The term "Personal" emphasizes that these computers are intended for personal use rather than being shared or used in a public setting. "Computer" refers to the electronic device that processes data and performs various operations based on instructions given to it.
2.
Another name for supercomputer is:
Correct Answer
C. Monster Computer
Explanation
Supercomputers are known for their exceptional computational power and ability to handle complex tasks. The term "Monster Computer" is a fitting alternative name for supercomputer as it conveys the idea of a machine with immense capabilities and performance. The term "mega" simply means large, while "power" does not accurately capture the full extent of a supercomputer's capabilities. Therefore, "Monster Computer" is the most suitable alternative name for a supercomputer.
3.
This computer is a multiprocessing computer system that is smaller and slower than a mainframe:
Correct Answer
C. Minicomputer
Explanation
A minicomputer is a type of computer system that is smaller and slower than a mainframe, making it a suitable explanation for the given answer. Minicomputers were widely used in the 1960s and 1970s and were smaller and less powerful than mainframe computers but still capable of handling multiple tasks simultaneously. They were often used in scientific and engineering applications, as well as in small businesses and research institutions. Therefore, a minicomputer fits the description of a multiprocessing computer system that is smaller and slower than a mainframe.
4.
This computer is mainly used in homes for recreation:
Correct Answer
A. Personal Computer
Explanation
A personal computer is the correct answer because it is designed for individual use and is commonly found in homes for recreational purposes. Personal computers are versatile and can be used for various activities such as gaming, web browsing, watching movies, and listening to music. They are typically smaller in size and more affordable compared to mainframe or minicomputers, making them suitable for personal use in a home environment.
5.
Complex scientifc research is usually done using:
Correct Answer
B. Supercomputer
Explanation
Supercomputers are typically used for complex scientific research due to their ability to process large amounts of data and perform complex calculations at incredibly high speeds. Their advanced processing power and parallel processing capabilities make them ideal for handling the complex algorithms and simulations required in scientific research. Additionally, supercomputers often have specialized hardware and software designed specifically for scientific applications, further enhancing their suitability for this type of work.
6.
Mainframe computers are very cheap.
Correct Answer
B. False
Explanation
The statement is false because mainframe computers are not cheap. Mainframe computers are large, powerful, and expensive machines that are designed to handle large amounts of data and perform complex tasks. They are typically used by large organizations and government agencies for critical operations where reliability, security, and high performance are essential. The cost of mainframe computers includes not only the hardware but also the software, maintenance, and specialized staff required to operate and manage them.
7.
Minicomputers have become outdated.
Correct Answer
A. True
Explanation
Minicomputers, which were smaller and less powerful than mainframe computers, have indeed become outdated. With the advancement of technology, the computing power of personal computers and servers has increased significantly, making minicomputers less relevant and less commonly used. This has led to a decline in the production and use of minicomputers, further supporting the statement that they have become outdated.
8.
Supercomputers are used extensively in the scientific field for research and simulations.
Correct Answer
A. True
Explanation
Supercomputers are indeed used extensively in the scientific field for research and simulations. These powerful machines are capable of processing and analyzing massive amounts of data, allowing scientists to perform complex calculations and simulations that would otherwise be impossible. They are used in various scientific disciplines such as physics, chemistry, biology, and climate modeling, enabling researchers to make significant advancements and discoveries. Therefore, the statement "Supercomputers are used extensively in the scientific field for research and simulations" is true.
9.
Personal computers are also called microcomputers.
Correct Answer
A. True
Explanation
Personal computers are commonly referred to as microcomputers because they are designed for individual use and are typically smaller in size compared to mainframe or minicomputers. These computers are intended for personal tasks such as word processing, internet browsing, and entertainment. The term "micro" in microcomputers refers to the use of microprocessors, which are the central processing units (CPUs) that power these computers. Therefore, it is accurate to say that personal computers are also called microcomputers.
10.
A laptop is an example of a personal computer.
Correct Answer
A. True
Explanation
A laptop is considered a personal computer because it is designed for individual use and can perform the same functions as a desktop computer. Laptops have a built-in display, keyboard, and touchpad, making them portable and convenient for personal use. They can run various software applications, access the internet, and perform tasks such as word processing, web browsing, and multimedia playback, just like a traditional desktop computer. Therefore, it is accurate to say that a laptop is an example of a personal computer.